ambulance

听到救护车的声音，人们立刻让出了道路。

People immediately cleared the way when they heard the ___ambulance siren.

灾区急需军用救护车运送伤员。

Military ___ambulances are urgently needed to transport the wounded in the disaster area.

那辆救护车是红色的，上面有白色的十字标志。

That ___ambulance is red with a white cross on it.

如果你看到有人受伤，请帮忙叫救护车。

If you see someone hurt, please help to call an ___ambulance.